... ) COVER MATERIALS :PRINT PAPER, PRINT PP , PVC , LEATHER ,FABRIC,PLUSH PHOTO ALBUM…. 2) BINDING STYLE:WELD BOUND ,THERMAL BOUND,POST BOUND ... ,RIVET BOUND, BOOK BOUND, GLUE BOUND ,SEWIGN BOUND PHOTO ALBUM….. 3) INNER SHEET MATERIALS:PP , CPP ,OPP ... , PVC , PAPER PAPER WITH PP POCKET PHOTO ALBUM…. 4) PHOTO SIZE:2R 3R 4R 4D 5R 6R 8R 10R ...